Patents by Inventor Zheng Q. Wen

Zheng Q. Wen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Biocidal composition
    Patent number: 9808012
    Abstract: A biocidal composition comprising tributyl tetradecyl phosphonium chloride and tetrakis(hydroxymethyl)phosphonium sulfate at a weight ratio of 2:1 to 1:10, and its use for the control of microorganisms in aqueous and water-containing systems.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: November 7, 2017
    Assignee: DOW GLOBAL TECHNOLOGIES LLC
    Inventors: Kathy Jing Ji, Zheng Q. Wen
  • BIOCIDAL COMPOSITION
    Publication number: 20150018317
    Abstract: A biocidal composition comprising tributyl tetradecyl phosphonium chloride and tetrakis(hydroxymethyl)phosphonium sulfate at a weight ratio of 2:1 to 1:10, and its use for the control of microorganisms in aqueous and water-containing systems.
    Type: Application
    Filed: August 13, 2010
    Publication date: January 15, 2015
    Inventors: Kathy Jing Ji, Zheng Q. Wen